Hearing aid tool



FIG. 1 is an isometric view of a hearing aid tool showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line shown in FIG. 1 is for the purpose of illustrating environmental structure and forms no part of the claimed design. 

CLAIM The ornamental design for a hearing aid tool, as shown and described. 